Location:	52°12.51' N 4°25.19' E - locator JO22FF00IB - show map 1.6 km North bearing 354° from Katwijk aan den Rijn, Gemeente Katwijk, South Holland, Netherlands [?] 2.5 km Northwest bearing 324° from Rijnsburg, Gemeente Katwijk, South Holland, Netherlands 32.0 km North bearing 353° from Rotterdam, Gemeente Rotterdam, South Holland, Netherlands 36.9 km Southwest bearing 240° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands
Last position:	2026-02-23 07:44:53 UTC (6d 1h34m ago) 2026-02-23 08:44:53 CET local time at Katwijk aan den Rijn, Netherlands [?]
Altitude:	71 m
Device:	Ricardo, CA2RXU: ESP32 LoRa Tracker (tracker)
Last path:	PD3GDB-7>APLRT1 via WIDE1-1,qAR,HA4BM-31
Positions stored:	126
Other SSIDs:	PD3GDB PD3GDB-5

This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.